NEW YORK (May 7, 2013) - This past Saturday, undefeated boxing superstar and undisputed No. 1 pound-for-pound fighter in the world Floyd "Money" Mayweather produced a magnificent performance en route to winning a 12-round unanimous decision over Robert "The Ghost" Guerrero on SHOWTIME PPV® before nearly 16,000 fans at the MGM Grand Garden Arena in Las Vegas, Nev.

This Saturday, May 11, SHOWTIME will air the fight, along withunbeaten Abner Mares' exciting ninth-round technical knockout victory over defending WBC Featherweight World Champion Daniel Ponce De Leon in the co-featured bout at 9 p.m. ET/PT (delayed on the West Coast).

Making his first start in a year, a dominant Mayweather (44-0, 26 KO's) showed no signs of ring rust while displaying the trademark speed and quickness, ring generalship, accuracy, intelligence and defensive mastery that he's been known for since his pro debut 17 years ago.

"Money" received rave reviews. Here's a sampling:

From Tim Dahlberg of Associated Press, "On the canvas where he does his best work, Mayweather painted a boxing masterpiece only he could produce."

"...once he found his groove, the multi-division champion put on a bravura boxing clinic. By the end of the night, no one could have any doubts that the pugilist from Grand Rapids, Mich., is the best pound-for-pound fighter on the planet," wrote Gordon Marino in the Wall Street Journal.

Said Greg Bishop of the New York Times, "When it ended, Mayweather hardly celebrated. He thumped his chest and hugged his father... He made it look easy, and it had been. He had landed a staggering 60 percent of his power punches."

"The countdown to the end of Floyd Mayweather legendary career began with a brilliant performance in a victory over Robert Guerrero. Mayweather rolled his record to 44-0 and kept alive a dream to end his career with a perfect mark," wrote Kevin Iole on Yahoo! Sports.

"MAY DAY: Mayweather vs. Guerrero," a 12-round fight for Mayweather's WBC Welterweight World Championship and the vacant Ring Magazine Welterweight World Championship, was promoted by Mayweather Promotions and Golden Boy Promotions and sponsored by Corona, O'Reilly Auto Parts, AT&T, Star Trek Into Darkness and Valvoline. The mega-event took place Saturday, May 4 at the MGM Grand Garden Arena in Las Vegas and was produced and distributed live by SHOWTIME PPV®. Also featured was WBC Featherweight World Champion Daniel Ponce de Leon taking on Two-Division World Champion Abner Mares in a 12-round fight for Ponce de Leon's WBC Featherweight World Championship.